20486656263 has 32 divisors (see below), whose sum is σ = 28545834240. Its totient is φ = 13058115840.

The previous prime is 20486656247. The next prime is 20486656279. The reversal of 20486656263 is 36265668402.

It is an interprime number because it is at equal distance from previous prime (20486656247) and next prime (20486656279).

It is not a de Polignac number, because 20486656263 - 2⁴ = 20486656247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20486656243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1617168 + ... + 1629786.

It is an arithmetic number, because the mean of its divisors is an integer number (892057320).

Almost surely, 2^20486656263 is an apocalyptic number.

20486656263 is a deficient number, since it is larger than the sum of its proper divisors (8059177977).

20486656263 is a wasteful number, since it uses less digits than its factorization.

20486656263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12927.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 20486656263 in words is "twenty billion, four hundred eighty-six million, six hundred fifty-six thousand, two hundred sixty-three".